Easy way to remove accents from a Unicode string? [duplicate]

Answer 1

For kotlin

fun stripAccents(s: String): String 
{
    var string = Normalizer.normalize(s, Normalizer.Form.NFD)
    string = Regex("\\p{InCombiningDiacriticalMarks}+").replace(string, "")
    return  string
}

Answer 2

thank you

public static final Pattern DIACRITICS_AND_FRIENDS = Pattern.compile(
                              "[\\p{InCombiningDiacriticalMarks}\\p{IsLm}\\p{IsSk}]+");

private static String stripDiacritics(String str) {
    str = Normalizer.normalize(str, Normalizer.Form.NFD);
    str = DIACRITICS_AND_FRIENDS.matcher(str).replaceAll("");
    return str;
}

=> stripDiacritics("Et Ça sera sa moitié." );

Answer 3

Finally, I've solved it by using the Normalizer class.

import java.text.Normalizer;

public static String stripAccents(String s) 
{
    s = Normalizer.normalize(s, Normalizer.Form.NFD);
    s = s.replaceAll("[\\p{InCombiningDiacriticalMarks}]", "");
    return s;
}

Answer 4

Maybe the easiest and safest way is using StringUtils from Apache Commons Lang

StringUtils.stripAccents(String input)

Removes diacritics (~= accents) from a string. The case will not be altered. For instance, 'à' will be replaced by 'a'. Note that ligatures will be left as is.

StringUtils.stripAccents()

Answer 5

Assuming you are using Java 6 or newer, you might want to take a look at Normalizer, which can decompose accents, then use a regex to strip the combining accents.

Otherwise, you should be able to achieve the same result using ICU4J.

Answer 6

I guess the only difference is that I use a + and not a [] compared to the solution. I think both works, but it's better to have it here as well.

String normalized = Normalizer.normalize(input, Normalizer.Form.NFD);
String accentRemoved = normalized.replaceAll("\\p{InCombiningDiacriticalMarks}+", "");